* {
    margin: 0 auto;
    padding: 0;
    box-sizing: border-box;
}

li {
    list-style: none;
}

a {
    text-decoration: none;
}

.wrapper {
    width: 1600px;
    margin: 0 auto;
}

.shortcut {
    height: 52px;
    background-color: #333;
}

.shortcut .wrapper {
    height: 52px;

}

.shortcut .wrapper ul {
    float: right;
}

.shortcut .wrapper li {
    float: left;
    line-height: 52px;
}

.shortcut .wrapper a {
    padding: 0 16px;
    border-right: 1px solid #666;
    font-size: 14px;
    
    color: #dcdcdc;
}

.shortcut .wrapper a span {
    display: inline-block;
    width: 11px;
    height: 16px;
    background-image: url(../images/sprites.png);
    background-position: -160px -70px;
    vertical-align: middle;
    margin-right: 5px;

}


.header {
    margin: 10px auto;
    height: 70px; 
    /* background-color: red;  */
     
}
.header.wrapper{
 /* background-color: red; */
}

.logo {
    float: left;
    width: 100px;
    height: 70px;

}

.logo h1 {
    width: 100px;
    height: 70px;
}
.logo h1 a {
    display: block;
    width: 120px;
    height: 80px;
    background-image: url(../images/logo.jpeg);
    background-size: 120px 80px;
    background-repeat: no-repeat;
    /* 让 h1 里面的字看不见  */
    font-size: 0;
}
.nav {
    float: left;
    height: 70px;
    margin-left: 200px;

}


.nav li {
    float: left;
    margin-right: 50px;
    line-height: 70px;
    font-size: 16px;
    font-weight: bold;
    color: #333;


}

.nav li a:hover {
    color: orange;
   

    border-bottom: 1px solid red;

}

.nav li a {
    padding-bottom: 10px;
}

.search {
    position: relative;
    float: right;
    border-bottom: 2px solid #e7e7e7;
    margin-top: 24px;
}

.search input {
    width: 170px;
    height: 28px;
    padding-left: 30px;

}
.search input ::placeholder {
    /* 设置placeholder的属性 */
    color: #ccc;
    font-size: 14px;


}
.search span {
    position: absolute;
    left: 3px;
    top: 1px;
    display: inline-block;
    width: 18px;
    height: 18px;
    background-image: url(../images/sprites.png);
    background-position: -80px -68px;

}

.banner {
    height: 500px;
    width: 1600px;
    background-color: #f5f5f5;
}
.banner  .wrapper{
      position: relative;
}

.banner .wrapper img {
    float: left;
    height: 500px;
    width: 1480px;
    box-sizing: border-box;


}

.banner .aside {
    float: left;
    width: 120px;
    height: 500px;
    /* background-color: #ba2d35; */
    background-color: slateblue;
}

.banner .aside li {
    height: 50px;
    width: 120px;
    line-height: 50px;

}

.banner .aside a {
    position: relative;
    font-size: 15px;
    padding-left: 15px;
    padding-right: 15px;
    color: white;
    display: block;
    height: 50px;
    width: 120px;
    /* background-color: #ba2d35; */
    background-color: slateblue;
}

.banner .aside a:hover {
    background-color: red;
}

.banner .aside a::after {
    position: absolute;
    right: 10px;
    top: 20px;

    content: '';
    width: 6px;
    height: 11px;
    background-image: url(../images/sprites.png);
    background-position: -80px -110px;
}
.wrapper {
    width: 1400px;
    margin: 10 auto;
}
.aside {
    float: none;
    height: 100%;
}
.banner .aside{
    height: 100%;

}
.banner .wrapper  img{
    float: none;
    height: 410px;
    width: 1280px;
    box-sizing: border-box;
    margin-left: 80px;
    /* margin-top: 90px; */

}
.content .text{
    text-indent: 2em;
}
.fixed {
    position: fixed;
    top: 142px;
    left: 60px;
    /* background-color: yellow; */
    /* color: blue; 
     padding: 10px;*/
}
/* .fixed1{
    position: fixed;
    top: 0;
    left: 0;
} */
 .fixed2{
    position: fixed;
    top: 62px;
    left: 60px;
}